Comp 108 Chapter 9 test

Which frequency range is suitable for satellite communication?

3-30 GHz

Which two protocols are NOT backward compatible?

802.11a Protocol 802.11b

The two main operational differences between the 802.11a protocol and the 802.11b protocol are:

802.11a protocol operates at 54Mbps within a 5GHz frequency range while 802.11b operates at 11Mbps within a 2.4GHz frequency range

The protocol with the highest bandwidth capability is _____:

802.11ac

Which of the following is NOT a standard Wi-Fi communications standard?

802.11x

A hardware device that has a built-in network adapter, antenna and radio for Wi-Fi is a(n) _____.

Access Point

Which of the following technologies use microwaves?

Cellular

Which of the following wireless technologies would fit under the WAN category?

Cellular

Which of the following is not a typical application of Bluetooth wireless communication?

Connecting several devices to the wireless Internet.

Select the most appropriate option: Wireless communication uses _____ to transmit a signal.

Electromagnetic waves

Which application operates in the frequency range 87.5 - 108 MHz?

FM Radio

What is the approximate distance between devices when establishing a connection using short-range wireless communication?

From a few centimeters to several meters

A single Wi-Fi Access Point can cover a geographic area as large as a(n) _____.

House

Which of the following are valid configurations of a Wireless Access Point?

IP address, NAT and Firewall

Which of the following wireless communication technologies does not travel through walls and needs line-of-sight to communicate?

Infrared

Which type of signal is suitable for short-range communication?

Infrared Signal

Which of the following best describes the connection tool for a new smartphone that can connect to Wi-Fi?

Integrated Wi-Fi

Relative to other technologies such as Bluetooth, WiFi and cellular, Zigbee provides wireless communication that provides _____.

Lower cost and longer battery life

The 802.11n Protocol makes use of _____ technology:

Multiple Input/Multiple Output (MIMO)

Which of the following is a feature of 5G?

Multiple device support

I. An Ethernet card is necessary for a wireless connectivity through a Wireless Access Point. II. The devices that are connected using a Wireless Access Point communicate using radio signals or Infrared waves. Which of the following is true with respect to above statements?

Only II is true.

How do signals travel between a GPS satellite and an on-the-ground GPS receiver?

Only from the satellite to the receiver

In the context of wireless computing devices, the term PDA stands for _____ _____ _____ ?

Personal Digital Assistant

A device that you can use to make and receive calls using a wireless connection and also contain some of the functionality of a computer is called a _____.

Smartphone

Although security is important, why is there a need to use Wireless Access Point as a pass-through set-up which allows any server to get connected to the network?

To enable the peer devices to exchange data without much difficulty.

Which of the following is NOT a difference between regular mobile phones and satellite phones?

Two-way wireless communication

Which of the following is/are true?

Wireless Access Points connect devices that have WI-FI or Bluetooth connectivity.

What is(are) the principal difference(s) between a smartphone and a tablet? a) screen size b) ability to make and receive calls over the cellular network c) use of touchscreen technology d) processing speed

a only

Wireless transmission happens when wireless equipment converts _____.

an electric current to electromagnetic waves

The wireless access points have a _____ that help share connections

switch